The cost to demolish a barn depends on a number of factors. A mechanical demolition using heavy machinery, like excavators, is quick and relatively inexpensive. On the contrary, barn deconstruction takes more time due to the increased manual labor and man hours needed.
The average cost of barn demolition is $8,000, and the average cost of barn deconstruction is double that in some cases. However, selling salvaged barn wood can recoup much of this.